<?php

namespace app\common\library;

use app\common\model\BaseUser;
use app\common\model\User;
use app\common\model\UserGroup;
use app\common\model\UserRule;
use fast\Random;
use think\Config;
use think\Db;
use think\Exception;
use think\Hook;
use think\Request;
use think\Validate;

class Auth
{
    protected static $instance = null;
    protected $_error = '';
    protected $_logined = false;
    protected $_user = null;
    protected $_token = '';
    //Token默认有效时长
    protected $keeptime = 2592000;
    protected $requestUri = '';
    protected $rules = [];
    //默认配置
    protected $config = [];
    protected $options = [];
    protected $allowFields = ['id', 'username', 'nickname', 'mobile', 'avatar', 'score', 'gender', 'birthday', 'school_id', 'face_token', 'group_id', 'group_name'];

    const SUCCESS = 1;
    const ERROR = 0;

    public function __construct($options = [])
    {
        if ($config = Config::get('user')) {
            $this->config = array_merge($this->config, $config);
        }
        $this->options = array_merge($this->config, $options);
    }

    /**
     *
     * @param array $options 参数
     * @return Auth
     */
    public static function instance($options = [])
    {
        if (is_null(self::$instance)) {
            self::$instance = new static($options);
        }

        return self::$instance;
    }

    /**
     * 获取User模型
     * @return User
     */
    public function getUser()
    {
        return $this->_user;
    }

    /**
     * 兼容调用user模型的属性
     *
     * @param string $name
     * @return mixed
     */
    public function __get($name)
    {
        return $this->_user ? $this->_user[$name] : null;
    }

    /**
     * 根据Token初始化
     *
     * @User ZhenZiHan
     * @Date 2020/1/8
     *
     * @param $token
     * @return bool
     * @throws \GuzzleHttp\Exception\GuzzleException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function init($token)
    {
        if ($this->_logined) {
            return true;
        }
        if ($this->_error) {
            return false;
        }
        $data = Token::get($token);
        if (!$data) {
            return false;
        }
        $user_id = intval($data['user_id']);
        if ($user_id > 0) {
            $user = BaseUser::get($user_id);
            if (!$user) {
                $this->setError('Account not exist');
                return false;
            }
            if ($user['status'] != 'normal') {
                $this->setError('Account is locked');
                return false;
            }

            $local_user = User::alias('user')
                ->join('__USER_GROUP__ group', 'group.id = user.group_id')
                ->field('user.id,group.id group_id,group.name group_name')
                ->where('user.id', $user->id)
                ->where('group.status', 'normal')
                ->find();
            if ($local_user) {
                $user['group_id'] = $local_user->group_id;
                $user['group_name'] = $local_user->group_name;
            } else {
                $user['group_id'] = 0;
                $user['group_name'] = '';
            }

            $this->_user = $user;
            $this->_logined = true;
            $this->_token = $token;

            //初始化成功的事件
            Hook::listen("user_init_successed", $this->_user);

            return true;
        } else {
            $this->setError('You are not logged in');
            return false;
        }

//        $ret = $this->post('/api/auth/init', compact('token'));
//        if (self::SUCCESS == $ret['code']) {
//            $user = User::alias('user')
//                ->join('__USER_GROUP__ group', 'group.id = user.group_id')
//                ->field('user.id,group.id group_id,group.name group_name')
//                ->where('user.id', $ret['data']['id'])
//                ->where('group.status', 'normal')
//                ->find();
//
//            if ($user) {
//                $ret['data']['group_id'] = $user->group_id;
//                $ret['data']['group_name'] = $user->group_name;
//            } else {
//                $ret['data']['group_id'] = 0;
//                $ret['data']['group_name'] = '';
//            }
//
//            $this->_user = $ret['data'];
//            $this->_token = $token;
//            $this->_logined = true;
//            return true;
//        }
//        return false;
    }

    /**
     * 登录
     *
     * @User ZhenZiHan
     * @Date 2020/1/8
     *
     * @param $account
     * @param $password
     * @return array|mixed|\Psr\Http\Message\StreamInterface
     * @throws \GuzzleHttp\Exception\GuzzleException
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function login($account, $password)
    {
        $field = Validate::is($account, 'email') ? 'email' : (Validate::regex($account, '/^1\d{10}$/') ? 'mobile' : 'username');
        $user = BaseUser::get([$field => $account]);
        if (!$user) {
            $this->setError('Account is incorrect');
            return false;
        }
        if ($user->status != 'normal') {
            $this->setError('Account is locked');
            return false;
        }
        if ($user->password != $this->getEncryptPassword($password, $user->salt)) {
            $this->setError('Password is incorrect');
            return false;
        }

        $ip = request()->ip();
        $time = time();

        //判断连续登录和最大连续登录
        if ($user->logintime < \fast\Date::unixtime('day')) {
            $user->successions = $user->logintime < \fast\Date::unixtime('day', -1) ? 1 : $user->successions + 1;
            $user->maxsuccessions = max($user->successions, $user->maxsuccessions);
        }

        $user->prevtime = $user->logintime;
        //记录本次登录的IP和时间
        $user->loginip = $ip;
        $user->logintime = $time;
        $user->save();

        $local_user = User::alias('user')
            ->join('__USER_GROUP__ group', 'group.id = user.group_id')
            ->field('user.id,group.id group_id,group.name group_name')
            ->where('user.id', $user->id)
            ->where('group.status', 'normal')
            ->find();
        if ($local_user) {
            $user['group_id'] = $local_user->group_id;
            $user['group_name'] = $local_user->group_name;
        } else {
            $user['group_id'] = 0;
            $user['group_name'] = '';
        }

        $this->_user = $user;
        $this->_token = Random::uuid();
        Token::set($this->_token, $user->id, $this->keeptime);

        $this->_logined = true;

        //登录成功的事件
        Hook::listen("user_login_successed", $this->_user);

        return true;

//        $ret = $this->post('/api/user/login', compact('account', 'password'));
//        if (self::SUCCESS == $ret['code']) {
//            $user = User::alias('user')
//                ->join('__USER_GROUP__ group', 'group.id = user.group_id')
//                ->field('user.id,group.id group_id,group.name group_name')
//                ->where('user.id', $ret['data']['userinfo']['id'])
//                ->where('group.status', 'normal')
//                ->find();
//
//            if ($user) {
//                $ret['data']['userinfo']['group_id'] = $user->group_id;
//                $ret['data']['userinfo']['group_name'] = $user->group_name;
//            } else {
//                $ret['data']['userinfo']['group_id'] = 0;
//                $ret['data']['userinfo']['group_name'] = '';
//            }
//
//            $this->_user = $ret['data']['userinfo'];
//            $this->_token = $ret['data']['userinfo']['token'];
//            $this->_logined = true;
//        }
//        return $ret;
    }

    public function direct($user_id)
    {
        $user = BaseUser::get($user_id);
        if ($user) {
            Db::startTrans();
            try {
                $ip = request()->ip();
                $time = time();

                //判断连续登录和最大连续登录
                if ($user->logintime < \fast\Date::unixtime('day')) {
                    $user->successions = $user->logintime < \fast\Date::unixtime('day', -1) ? 1 : $user->successions + 1;
                    $user->maxsuccessions = max($user->successions, $user->maxsuccessions);
                }

                $user->prevtime = $user->logintime;
                //记录本次登录的IP和时间
                $user->loginip = $ip;
                $user->logintime = $time;

                $user->save();

                $this->_user = $user;

                $this->_token = Random::uuid();
                Token::set($this->_token, $user->id, $this->keeptime);

                $this->_logined = true;

                //登录成功的事件
                Hook::listen("user_login_successed", $this->_user);
                Db::commit();
            } catch (Exception $e) {
                Db::rollback();
                $this->setError($e->getMessage());
                return false;
            }
            return true;
        } else {
            return false;
        }
    }

    /**
     * 获取密码加密后的字符串
     * @param string $password 密码
     * @param string $salt     密码盐
     * @return string
     */
    public function getEncryptPassword($password, $salt = '')
    {
        return md5(md5($password) . $salt);
    }

    /**
     * 注销
     *
     * @User ZhenZiHan
     * @Date 2020/1/8
     *
     * @return bool
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function logout()
    {
        if (!$this->_logined) {
            $this->setError('You are not logged in');
            return false;
        }
        //设置登录标识
        $this->_logined = false;

        $ret = $this->post('/api/user/logout');

        if (self::SUCCESS == $ret['code']) {
            return true;
        }

        return false;
    }

    /**
     * 检测是否是否有对应权限
     *
     * @User ZhenZiHan
     * @Date 2020/1/8
     *
     * @param null $path 控制器/方法
     * @param null $module 模块 默认为当前模块
     * @return bool
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function check($path = null, $module = null)
    {
        if (!$this->_logined) {
            return false;
        }

        $ruleList = $this->getRuleList();
        $rules = [];
        foreach ($ruleList as $k => $v) {
            $rules[] = strtolower($v['name']);
        }
        $url = ($module ? $module : request()->module()) . '/' . (is_null($path) ? $this->getRequestUri() : $path);
        $url = strtolower(str_replace('.', '/', $url));
        return in_array($url, $rules) ? true : false;
    }

    /**
     * 判断是否登录
     * @return boolean
     */
    public function isLogin()
    {
        if ($this->_logined) {
            return true;
        }
        return false;
    }

    /**
     * 获取当前Token
     * @return string
     */
    public function getToken()
    {
        return $this->_token;
    }

    /**
     * 获取用户基本信息
     */
    public function getUserinfo()
    {
        $data = $this->_user->toArray();
        $allowFields = $this->getAllowFields();
        $userinfo = array_intersect_key($data, array_flip($allowFields));
        $userinfo = array_merge($userinfo, Token::get($this->_token));

        return $userinfo;
        //return $this->_user;
    }

    /**
     * 获取用户组别规则列表
     *
     * @User ZhenZiHan
     * @Date 2020/1/8
     *
     * @return array|false|\PDOStatement|string|\think\Collection
     * @throws \think\db\exception\DataNotFoundException
     * @throws \think\db\exception\ModelNotFoundException
     * @throws \think\exception\DbException
     */
    public function getRuleList()
    {
        if ($this->rules) {
            return $this->rules;
        }
        if (!$this->_user['group_id']) {
            return [];
        }
        $group = UserGroup::where('id', $this->_user['group_id'])->find();
        if (!$group) {
            return [];
        }
        $rules = explode(',', $group->rules);
        $this->rules = UserRule::where('status', 'normal')->where('id', 'in', $rules)->field('id,pid,name,title,ismenu')->select();
        return $this->rules;
    }

    /**
     * 获取当前请求的URI
     * @return string
     */
    public function getRequestUri()
    {
        return $this->requestUri;
    }

    /**
     * 设置当前请求的URI
     * @param string $uri
     */
    public function setRequestUri($uri)
    {
        $this->requestUri = $uri;
    }

    /**
     * 获取允许输出的字段
     * @return array
     */
    public function getAllowFields()
    {
        return $this->allowFields;
    }

    /**
     * 设置允许输出的字段
     * @param array $fields
     */
    public function setAllowFields($fields)
    {
        $this->allowFields = $fields;
    }

    /**
     * 检测当前控制器和方法是否匹配传递的数组
     *
     * @param array $arr 需要验证权限的数组
     * @return boolean
     */
    public function match($arr = [])
    {
        $request = Request::instance();
        $arr = is_array($arr) ? $arr : explode(',', $arr);
        if (!$arr) {
            return false;
        }
        $arr = array_map('strtolower', $arr);
        // 是否存在
        if (in_array(strtolower($request->action()), $arr) || in_array('*', $arr)) {
            return true;
        }

        // 没找到匹配
        return false;
    }

    /**
     * 设置会话有效时间
     * @param int $keeptime 默认为永久
     */
    public function keeptime($keeptime = 0)
    {
        $this->keeptime = $keeptime;
    }

    /**
     * 渲染用户数据
     * @param array $datalist 二维数组
     * @param mixed $fields 加载的字段列表
     * @param string $fieldkey 渲染的字段
     * @param string $renderkey 结果字段
     * @return array
     */
    public function render(&$datalist, $fields = [], $fieldkey = 'user_id', $renderkey = 'userinfo')
    {
        $fields = !$fields ? ['id', 'nickname', 'level', 'avatar'] : (is_array($fields) ? $fields : explode(',', $fields));
        $ids = [];
        foreach ($datalist as $k => $v) {
            if (!isset($v[$fieldkey])) {
                continue;
            }
            $ids[] = $v[$fieldkey];
        }
        $list = [];
        if ($ids) {
            if (!in_array('id', $fields)) {
                $fields[] = 'id';
            }
            $ids = array_unique($ids);
            $selectlist = User::where('id', 'in', $ids)->column($fields);
            foreach ($selectlist as $k => $v) {
                $list[$v['id']] = $v;
            }
        }
        foreach ($datalist as $k => &$v) {
            $v[$renderkey] = isset($list[$v[$fieldkey]]) ? $list[$v[$fieldkey]] : null;
        }
        unset($v);
        return $datalist;
    }

    /**
     * 设置错误信息
     *
     * @param $error 错误信息
     * @return Auth
     */
    public function setError($error)
    {
        $this->_error = $error;
        return $this;
    }

    /**
     * 获取错误信息
     * @return string
     */
    public function getError()
    {
        return $this->_error ? __($this->_error) : '';
    }

    /**
     * 通用post方法
     *
     * @User ZhenZiHan
     * @Date 2020/1/8
     *
     * @param $url
     * @param array $data
     * @return array|mixed|\Psr\Http\Message\StreamInterface
     * @throws \GuzzleHttp\Exception\GuzzleException
     */
    public function post($url, $data = [], $domain = '')
    {
        if (!$domain) {
            $domain = config('mp.url');
        }
        $client = new \GuzzleHttp\Client([
            'base_uri' => $domain,
            'timeout' => 30,
            'allow_redirects' => false,
        ]);

        if ($this->_logined) {
            $data['token'] = $this->_token;
        }

        $response = $client->request('post', $url, [
            'form_params' => $data
        ]);

        $code = $response->getStatusCode();
        if (200 == $code) {
            $content = $response->getBody();
            if ($content) {
                $content = json_decode($content, true);
                if (is_array($content)) {
                    return $content;
                }
            }
            return [
                'code' => 0,
                'msg' => 'error',
                'data' => null
            ];
        } else {
            return [
                'code' => $code,
                'msg' => 'error',
                'data' => null
            ];
        }

    }
}
